The A&A Engineering one is very nice too and also over $100 (let me know if
you need me to look up the details but should be easy to find). It was in
an article in QST 5-6 years ago as a construction project, but you could buy
them from A&A assembled. Has kept a battery well maintained on a repeater
since then. Well designed and very gentle on the battery. Dan KI6X
From: firstname.lastname@example.org [mailto:email@example.com] On
Behalf Of firstname.lastname@example.org
Sent: Thursday, January 13, 2011 5:34 PM
To: RFI List
Subject: [RFI] Battery Maintainers & RFI
Many of us would benefit from a reliable battery maintenance
charger for backup and portable batteries - but the problem
has been suffering overcharge or troublesome cycling.
In the search for a low-RFI and properly designed battery
maintenance charger I have found the following. Sure would
appreciate any experienced/informed feedback about specific
The Xantrex TrueCharger appears to be intentionally RFI-free
and designed for relibility ...
... but they are $116. for the base model:
Then there are a variety of maintainers that also claim desulfating
circuitry, and they may be found for between $9.99 (on sale) up to
Walmart had this one on display today:
Schumacher XM1-5 Maintainer, 1.5-Amp $20.
I guess we'd have to know what microprocessor and circuit they are
using to know how it really functions and if it does not trash nearby
radios. Anyone checked one out?
Thanks! & 73, KD4E
David Colburn http://kd4e.com
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